Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
zhang wei » zhen wei
shang hai » shang kai, dang hai, chang ha
yong yan » yang yang, dong yang, ying yang
yan daun » wan daud
yang wei » wang wei, fang wei, liang wei
yan kun » yan guan, yan yuan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yan ((yan daun) OR (yan kun)) ((yang wei) or (zhang wei)) shang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yan ((yan daun) OR (yan kun)) ((yang wei) OR (zhang wei)) shang hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yan ((yan daun) OR (yan kun)) ((yang wei) or (zhang wei)) shang hai ;*".